Cutting machine



Feb, 22, 1938. F. WjBlLLKER ET AL CUTTING MACHINE Original Filec} March29, 1935 2 6, 6M ML Mf ww ATTORNEY.

Patented Feb. 22, 1938 UNETED STATES 2,109,057 PATENT OFFIQE B. Bail,Chicago, Ill.,

assignors to Milwaukee Saw Trimmer Corporation, Milwaukee, Wis, acorporation of Wisconsin Original application March 29, 1935, Serial No.13,604. Divided and this application May 21,

1936, Serial No. 81,014

15 Claims.

The present invention relates generally to improvements in theconstruction and operation of cutting machines of the class employed inthe composing rooms of printing establishments for the purpose ofcutting and trimming type bars, slugs, borders, plates, or othertypographical stock.

Generally stated, an object of the invention is to provide improvedcutting mechanism which is simple and durable in construction, and whichis moreover highly efficient and flexible in use.

Another object of the invention is to provide improved structure forsegregating and for distributing the cuttings from a typographers saw orthe like, so as to suit the desires of the operator.

A further object of the invention is to provide an improved supportingcabinet for cutting and trimming machines or the like, whereby thenormal use of such machines is facilitated and the range of utility isenhanced.

Still another object of the invention is to produce an improved sawassemblage provided with simple means for obviating undesirable reboundof the cuttings.

An additional object of the invention is to provide improved mechanismfor supporting and for counter-balancing the weight of the movablecutter of a type trimming machine.

Another object of the invention is to provide an improved cuttingmachine adapted for both normal trimming and undercutting, and whereinthe cutter is quickly and readily removable from the driving shaft.

A further object of the invention is to provide improved saw guard andmovable sub-table structure swingable about a common pivot, and improvedmeans for retaining the saw guard in various positions.

Another object of the invention is to provide Various other improvementsin the details of construction of cutting machines, whereby the cost ofconstruction and operation is reduced to a minimum, while the generalutility thereof is enhanced to a maximum.

These and other objects and advantages will be apparent from thefollowing detailed description:

The present application is a division of our co-pending applicationSerial No. 13,604, filed March 29, 1935.

A clear conception of embodiments of the several new features, and ofthe mode of constructing and of operating cutting machines built inaccordance with the improvements, may be had by referring to the drawingaccompanying and forming a part of this specification in which likereference characters designate the same or similar parts in the variousviews.

Fig. 1 is a vertical section through one of the improved cuttingmachines showing the cuttings distributing structure and the improvedsaw mounting;

Fig. 2 is an enlarged similar section through the saw supporting anddriving structure, showing the dressing wheel and guard in dot-anddashlines;

Fig. 3 is a fragmentary vertical irregular section through the machine,part of the section being taken through the work support remote from thesaw, and another part of the section being taken in the plane ofcutting;

Fig. 4 is a fragmentary side View of the machine, showing the saw innormal cutting position for slugs and the like;

Fig. 5 is a similar View of the machine, showing the saw adjusted toanother cutting position for plates or the like, with the saw guardswung back; and

Fig. 6 is another similar view of the machine, showing the sawpositioned preparatory to removal thereof, with the saw guard andsubtable swung clear of the saw.

While the features of the improvement have been shown and described asbeing applied to a particular type of sawing and trimming machine, it isnot intended to unnecessarily restrict the scope by such specificembodiment, since some of these features may obviously be susceptible ofmore general application.

Referring to the drawing, the improved cutting machine illustratedtherein, comprises in general a stationary frame l5 having a main uppersubstantially horizontal work-supporting surface lfi; a rotary cutter orsaw I l swingably supported by the frame I5 for movement through a slottherein, and cooperable with the work resting upon the surface it;suitable instrumentalities, (not shown), for moving the work along thesurface It past the saw ll; clamping mechanism 20 movable within a slot2! in the frame IE to insure simultaneous advancement of the work withthe gage bar; and a cabinet '22 for supporting the main frame i5 andhaving structure therein for properly distributing the cuttings.

The main frame i5 is of sturdy construction and is permanently attachedto the supporting cabinet 22 so as to permit handling of theinterconnected elements, as a unit. The saw I! is detachably secured toone end of a shaft 23 mounted in spaced bearings 24, 25 carried at theforward end of a swingable frame 26, the medial portion of which issuspended from the fixed frame l5 by a pivot 21, and the rear portion ofwhich carries a propelling motor 28. The weight of. the motor 28 thustends to counter-balance the weight of the saw I! and shaft 23, and themotor is drivingly connected to the shaft 23 by a belt at coacting witha pulley 31? secured to the shaft 23 between the bearings 24, 25. Thesaw 51 is detachably secured to a hub 3i which has screw thread coactionwith the end of the shaft 23, and the saw hub is provided with trimmerknives 32, the clamping screw sockets of which are adapted to be engagedby a spanner wrench during removal of the saw. The end of the shaft 23remote from the saw may be provided with collars 33 adapted to clamp anemerywheel 34 to the outer shaft end, and the pulley 3B is preferablyprovided with a series of holes 35 formed for reception of a slidablepin. 35 carried by the saw frame 25 so that the shaft 23 may be lockedagainst rotation while the saw H or the emery-wheel 34, are beingapplied. or removed. The emery-wheel 34 may be provided with a removableguard 31 attached to the adjacent bearing 25, as shown in Figs. 1 and 2;and the saw frame 26 carries an integral oil reservoir 38 having thereina wick extending toward one face of the saw H for controlling thequantity of oil passing through the wick.

As previously stated, the saw I? and frame 26 are swingable about thepivot 21, and in order to definitely position the saw I! relative to thework-supporting surface Hi, the forward portion of the frame 26 isprovided with positioning and locking structure such as shown in Figs.4, and 6. The extreme forward end of the saw frame 26 carries a bolt 4|which is movable along an arcuate slot 62 formed in the main frame l5,and a hand nut 33 coacts with the bolt 4| so as to permit clamping ofthe frame 26 and resultant positioning of the saw I! in any desiredposition relative to the surface it. Since it is preferable duringnormal slug cutting, to have the central axis of the saw ii insubstantial alinement with the central horizontal plane of the work, themain frame l5 may be provided with a hole 44 which is engageable by alatch pin 45 carried by the forward portion of the frame 26 topositively lock the saw H in normal slug cutting position as shown inFig. 4. This pin 45 is also engageable with a second hole 46 in theframe 25 to positively lock the saw l! in plate cutting position, asshown in Fig. 5; and may also be swung to lower positions forundercutting to any depth, or the frame may be swung upwardlysufficiently to permit free removal and application of the saw IT. Thework supporting table is also provided with a movable section 4'! whichis swingably supported upon the saw frame pivot 21 and is engageablewith the bearings 25%, 25 when the latter are raised, so as to open agap for the discharge of slugs and cuttings from the surface l5, butwhen plates are being cut the top surface of the sub-table 4? lies flushwith the surface 55. A saw guard 48 which is also swingably supported bythe frame pivot 27, and which has a lower surface 45 adapted to restupon the table section 4?, encloses the upper portion of the saw l1 andis movable with the section 4'1 when the latter is elevated, but whenthe saw H is lowered sufficiently, the guard 53 rests upon the worksupporting surface I6 through spacer projections.

The main frame I5 in advance of the saw i7, is provided with an integralrebound preventing curved surface 55 formed to prevent the chips andcuttings from bouncing back against the saw, and to direct thesecuttings into a chute 5|. The saw carrying frame 26 is also providedwith a depending apron extending laterally and to the rear of the sawblade, for the purpose of also directing cuttings into the chute 5|regardless of the position of adjustment of the saw. The chute 5i may bepart of the supporting cabinet 22 which may be provided with agalley-support 52 adjacent the upper end of the chute, and has concealedtherein a combined drawer 53 and subchute 54 which are interchangeablycooperable with the lower discharge end of the main chute 5|, seeFig. 1. The drawer 53 when positioned as shown in dot-and-dash lines inFig. 1, is adapted to receive brass rule and other hard cuttingsdelivered from the saw I? to the main chute 5|, thereby preventing theseharder cuttings from mixing with the soft metal cuttings. When thedrawer 53 is positioned as shown in solid lines in Fig. 1, the slugs andsoft metal cuttings are de--v livered to the sub-chute 54 which isadapted to deliver the soft metal into a waste-receiving box or car 55disposed within the cabinet space beneath the drawer 53. The cabinet 22may also be provided with a tool drawer 56 above the cuttings-receivingdrawer 53 and laterally adjacent to the lower end of the main chute 5|,and may also have another drawer 5'! therein beneath the galley-rest 52.

During normal operation of the improved cutting machine, the saw ll maybe set in motion at the will of the operator, by manipulating a switchpreferably disposed at the front of the machine. Depending upon theclass of work being operated upon, the saw i! may be adjusted to anydesired position relative to the work supporting surface I6, bymanipulation of the hand nut 53 and subsequent swinging of the frame 26so as to bring the saw i! in the desired position of adjustment. Whenthe saw H is set in the position illustrated in Fig. 4, the pin 45engages the hole 44 in the frame |5 and locks the saw support 25 innormal cutting position. When plates are to be trimmed, the support 26may be swung to the position shown in Fig. 5 and locked in such positionby the engagement of the pin 45 with the hole 46 in the frame. The handnut 53, however, permits setting of the saw H in any intermediateposition and also permits lowering of the saw for undercutting, and itwill be noted that when the saw I! is elevated as in Fig. 4, the tablesection M is also elevated to open a gap for dis charge of slugs, andthe saw guard 48 then moves with the table-section ii. In order toeifect removal of the saw Ii, or of the emery wheel 34, the saw supportmay be elevated considerably beyond cutting position, whereupon the sawI! may be readily removed by applying a spanner wrench to the trimmersocket while the saw shaft 23 is locked in position by the locking pin35.

The counterbalancing of the weight of the saw ii and the shaft 23 by theWeight of the motor 28, permits convenient adjustment of the saw, andthe mounting of the sub-table 6'! and saw guard 48 on the pivot whichsupports the saw carrying frame, materially simplifies the structure.The cuttings are effectively removed from the zone of cutting by thechute 5| cooperating with the rebound preventing surface 56, and thedrawer 53 with its auxiliary chute 554, permits rapid and effectivedistribution of the cuttings, in any desired manner. The galley rest 52disposed at the receiving end of the chute 5|, provides means forconveniently handling the work and for supporting the removedaccessories which are associable with the machine, and the drawers 56,51 provide storage space for tools and these removed accessories.

The saw I! and the emery wheel 34 may be quickly removed from the shaft23, and replaced by another, without undesirably dismantling thestructure, and the improved cutting machine has proven highly successfuland extremely flexible in actual commercial use.

It should be understood that it is not desired to limit the presentinvention to the exact details of construction and to the precise modeof operation herein shown and described, for various modificationswithin the scope of the claims may occur to persons skilled in the art.

It is claimed and desired to secure by Letters Patent:-

1. In a cutting machine, a cutter, a chute extending beneath and acrossthe plane of action of said cutter, a cabinet supporting said cutter andsaid chute and having a confined space communicating with said chute,and an element movable in said space for effecting controlleddistribution of the cuttings delivered from said chute eithercumulatively upon said element or freely out of said space.

2. In a cutting machine, a cutter, a chute for directing cuttings awayfrom said cutter, a cabinet supporting said cutter and said chute, and adrawer slidable with respect to the discharge end of said chute withinsaid cabinet to interchangeably effect delivery of the cuttings eitherinto said drawer or past the same and out of said cabinet.

3. In a cutting machine, a frame having a work supporting surface, acutter associated with said frame near said surface, a cabinet forsupporting said frame and having therein a chute for directing cuttingstoward the central interior portion of the cabinet, and a drawer movablewithin said cabinet to a position in alinement with the discharge end ofsaid chute, said cabinet having an opening communicating with the drawerspace for effecting free external discharge of cuttings from said chutewhen said drawer is in a predetermined position.

4. In a cutting machine, a frame having a Work supporting surface, acutter associated with said frame near said surface, a cabinet forsupporting said frame and having therein a chute for directing cuttingstoward the central interior portion of the cabinet, and a drawer movablewithin said cabinet to a position in alinement with the discharge end ofsaid chute, said drawer having an auxiliary chute movable therewith andinterchangeably communicable with the discharge end of said firstmentioned chute.

5. In a cutting machine, a frame having an upper work supportingsurface, a cutter associated with said frame, a cabinet for supportingsaid frame and having therein a cuttings discharge chute, and a galleyrest formed integral with said cabinet and disposed adjacent the inletopening of said chute beneath and laterally remote from said surface.

6. In a cutting machine, a frame having an upper work supportingsurface, a cutter movably supported by said frame near said surface, asupport for said frame having a chute disposed beneath said cutter, anda galley rest formed integral with said frame support and having anupper work supporting surface disposed beneath said frame surface andlaterally adjacent to the cuttings receiving end of said chute and atthe side thereof remote from said cutter.

'7. In a cutting machine, a frame having a work supporting surface, anelongated support having its medial portion pivotally attached to 7 saidframe, a rotary cutter journaled on said support in front of itsattaching pivot, a driving motor for said cutter secured to said supportrearwardly of said pivot, a guard for said cutter swingably mounteddirectly upon said pivot, and means for clamping said support to saidframe in various positions so as to vary the position of said cutterrelative to said surface.

8. In a cutting machine, a frame, an elongated support, a pivotconnecting the medial portion of said support with said frame, a cuttercarried by said support at one side of said pivot, propelling means forsaid cutter carried by said support at the opposite side of said pivot,and a guard for said cutter swingably mounted directly upon said supportpivot.

9. In a cutting machine, a frame having a work supporting surfaceprovided with a movable sec tion, a support, a pivot connecting saidsupport and said frame, a rotary cutter carried by said support remotefrom said pivot and being movable relative to said frame, and a guardfor said cutter, both said guard and said movable frame section beingswingably supported directly upon said support pivot.

10. In a cutting machine, a work supporting frame, an elongated support,a pivot connecting the medial portion of said support with said frame, acutter journalled in said support at one side of said pivot, propellingmeans for said outter carried by said support at the opposite side ofsaid pivot, and a guard for said cutter suspended from said pivot andbeing swingable thereabout independently of said support.

11. In a cutting machine, a work supporting frame, an elongated support,a pivot connecting said support and said frame, a cutter journalled insaid support remote from said pivot and being swingable relative to saidframe, and a guard for said cutter suspended directly from said pivotand being swingable thereabout independently of said support.

12. In a cutting machine, a stationary frame, a pivot carried by saidframe, a cutter support swingably suspended from said pivot, a cuttercarried by said support, a guard for said cutter also swingablysuspended from said pivot, and a table section likewise swingablysuspended from said pivot, said cutter support and said guard and saidtable section being independently swingable relative to said frame.

13. In a cutting machine, a fixed work supporting frame, a cutter, asupport for said cutter, a pivot connecting said support and said frame,a cutter guard suspended from said pivot, and a table section suspendedfrom said pivot, said cutter support and said guard and said tablesection being independently swingable about said pivot and relative tosaid frame.

14. In a cutting machine, a frame, a cutter carried by said frame, acabinet supporting said frame, and a drawer slidable within said cabinetbeneath said cutter, said drawer having a chute and being operable tointerchangeably effect delivery of cuttings either into the drawer orthrough said chute and out of said cabinet.

15. In a cutting machine, a work support, a cutter cooperating with saidsupport, a cabinet supporting said work support and said cutter, and anelement slidable within said cabinet beneath said cutter, said elementhaving a chute and being formed to interchangeably effect delivery ofcuttings either cumulatively upon the element or freely through saidchute and out of said cabinet.

FREDRICK W. BILLKER. JOHN B. BALL.

